Los Angeles Times ‘Club Buzz’ reports Christina Aguilera, Janet Jackson and Missy Elliott, Mark McGrath, and Justin Timberlake partied last Saturday at A.D. in Hollywood. Meanwhile, Kelly Osbourne showed up with a note from her mom, promising she wouldn’t drink. They also report *NSYNC star Lance Bass recently chatted with former Guns N’ Roses guitarist Slash for about 10 minutes backstage at the Forum after a recent Aerosmith visit. Lance actually didn’t know who Slash was, but was just being polite. Calendarlive.com has since removed the article.